1.

Comet C/2023 A3 (Tsuchinshan-ATLAS) passes perigee Comet C/2023 A3 (Tsuchinshan-ATLAS) makes its closest approach to the Earth. Sat, 12 Oct 2024 (275 days ago) in Virgo

2.

Comet C/2024 S1 (ATLAS) passes perigee Comet C/2024 S1 (ATLAS) makes its closest approach to the Earth. Wed, 23 Oct 2024 (264 days ago) in Corvus

3.

Comet C/2024 S1 (ATLAS) passes perihelion Comet C/2024 S1 (ATLAS) makes its closest approach to the Sun. Mon, 28 Oct 2024 (259 days ago) in Virgo

4.

Comet 333P/LINEAR passes perihelion Comet 333P/LINEAR makes its closest approach to the Sun. Fri, 29 Nov 2024 (227 days ago)

5.

Comet C/2024 G3 (ATLAS) passes perigee Comet C/2024 G3 (ATLAS) makes its closest approach to the Earth. Mon, 13 Jan 2025 (182 days ago) in Sagittarius

6.

Comet C/2024 G3 (ATLAS) passes perihelion Comet C/2024 G3 (ATLAS) makes its closest approach to the Sun. Mon, 13 Jan 2025 (182 days ago) in Sagittarius

7.

Comet 21P/Giacobini-Zinner passes perihelion Comet 21P/Giacobini-Zinner makes its closest approach to the Sun. Tue, 25 Mar 2025 (111 days ago) in Pisces

8.

Comet 3I/ATLAS passes perihelion Comet 3I/ATLAS makes its closest approach to the Sun. Wed, 29 Oct 2025 (107 days away) in Virgo

9.

Comet 210P/Christensen passes perihelion Comet 210P/Christensen makes its closest approach to the Sun. Sat, 22 Nov 2025 (131 days away) in Libra

10.

Comet 240P/NEAT passes perihelion Comet 240P/NEAT makes its closest approach to the Sun. Fri, 19 Dec 2025 (158 days away) in Aries

11.

Comet 24P/Schaumasse passes perigee Comet 24P/Schaumasse makes its closest approach to the Earth. Mon, 05 Jan 2026 (175 days away) in Virgo

12.

Comet 24P/Schaumasse reaches peak brightness Comet 24P/Schaumasse is forecast to reach the brightest point in its 2026 apparition. Wed, 07 Jan 2026 (177 days away) in Virgo

13.

Comet 24P/Schaumasse passes perihelion Comet 24P/Schaumasse makes its closest approach to the Sun. Thu, 08 Jan 2026 (178 days away) in Virgo

14.

Comet C/2024 E1 (Wierzchos) passes perihelion Comet C/2024 E1 (Wierzchos) makes its closest approach to the Sun. Tue, 20 Jan 2026 (190 days away) in Microscopium

15.

Comet C/2024 E1 (Wierzchos) reaches peak brightness Comet C/2024 E1 (Wierzchos) is forecast to reach the brightest point in its 2026 apparition. Mon, 26 Jan 2026 (196 days away) in Grus

16.

Comet C/2024 E1 (Wierzchos) passes perigee Comet C/2024 E1 (Wierzchos) makes its closest approach to the Earth. Tue, 17 Feb 2026 (218 days away) in Sculptor

17.

Comet 88P/Howell passes perihelion Comet 88P/Howell makes its closest approach to the Sun. Wed, 18 Mar 2026 (247 days away) in Capricornus

18.

Comet 141P/Machholz passes perihelion Comet 141P/Machholz makes its closest approach to the Sun. Wed, 22 Apr 2026 (282 days away) in Aries

19.

Comet 78P/Gehrels passes perihelion Comet 78P/Gehrels makes its closest approach to the Sun. Thu, 25 Jun 2026 (346 days away) in Taurus

20.

Comet 10P/Tempel passes perihelion Comet 10P/Tempel makes its closest approach to the Sun. Sun, 02 Aug 2026 (384 days away) in Capricornus